stdlib/kotlin.text/StringBuilder/insert

insert

fun insert(index: Int, value: Byte): StringBuilder(source)
fun insert(index: Int, value: Short): StringBuilder(source)
fun insert(index: Int, value: Int): StringBuilder(source)
fun insert(index: Int, value: Long): StringBuilder(source)
fun insert(index: Int, value: Float): StringBuilder(source)
fun insert(index: Int, value: Double): StringBuilder(source)

Since Kotlin

1.3